Display screen or portion thereof with graphical user interface



The FIGURE is a front view of a display screen or portion thereof with graphical user interface showing my new design with environmental structure shown in broken lines.

The broken lines outside the solid line rectangle showing the electronic device are included for the purpose of illustrating environmental structure and form no part of the claimed design. The outermost, solid line rectangle depicts the display screen which forms part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 